package com.example.treehole.service;

import com.baomidou.mybatisplus.extension.service.IService;
import com.example.treehole.bean.Course;

public interface CourseService extends IService<Course> {
    boolean addCourse(Course course);

    java.util.List<Course> getCoursesByUserId(String userId);

    boolean deleteCourse(String id);
}